A duck is flying around and its velocity v as a function of time t is given in the graph below where rightwards is the positive velocity direction. What time t does the duck have the same position as time t = 0 secs?

okay i have so many questions. but the big one here is: um wt..f is this mess? ?

the answer is neither ball has a charge.

because if they were both positively charged, they will repel each other.

if they were positively and negatively charged, they will seek.

no simpler subs form complex ones. synthesise = make

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.